IITM Study Finds Firecrackers Major Source of Delhi's PM2.5 Pollution After Diwali
A study by the Indian Institute of Tropical Meteorology (IITM), Pune, found that firecrackers contributed 71.1% of Delhi's PM2.5 pollution during early hours of November 9, following Diwali. Firecracker emissions rose from 5.6% on November 7 to 43.4% on Diwali and then 71.1% post-celebration, before declining to 29.8% on November 10. Vehicles accounted for just 6.9% of PM2.5 during this period. The study also noted high pollution spikes, with Jahangirpuri recording 4,985 μg/m3 at 3 am on November 9.
First-hand measurement across 2 sources
We measured how 2 outlets covered this story. No outlet gave this story a measurable political slant — there is no left–right reading to report. Overall sentiment is neutral (49/100). Lens Score 51/100.
Outlets measured: moneycontrol, moneycontrol. See how each one headlined and framed the same story in the source comparison below.
AI Analysis
Sentiment was consistent across outlets (48–50/100), indicating broadly factual reporting rather than editorialising.
Coverage timeline
moneycontrol broke this story on 11 Nov, 06:27 am. Other outlets followed.